Why does FoxyProxy sometimes use the wrong SOCKS proxy for 15 seconds?
When using multiple SOCKS proxy servers, Firefox “remembers” the last SOCKS proxy used for a particular domain for roughly 15 seconds. For example, suppose you configure FoxyProxy rules such that http://foo.com/a.gif loads through SOCKS proxy #1 and http://foo.com/b.gif loads through proxy #2. Now you visit http://foo.com/a.gif, forcing the resource to load through SOCKS proxy #1. A moment later you visit http://foo.com/b.gif. Unfortunately, Firefox will load http://foo.com/b.gif through SOCKS proxy #1 instead of #2. Note that this only occurs when the domains are the same (foo.com in this case). Waiting approximately 15 seconds makes Firefox “forget” the last SOCKS proxy used for that domain. This is a Firefox issue and has nothing to do with FoxyProxy. If you uninstall FoxyProxy, Firefox will exhibit the same behavior natively. FoxyProxy does, however, report on its logging tab that the correct proxies were used to load the resources, slightly confusing the issue. Possible workaround
